The sum of two numbers is 32, the sum of their logarithms (base 10) is 2.2. Determine these numbers.
Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):
Showing 0 comments:
Be the first to comment!
To solve this example are needed these knowledge from mathematics:
Next similar examples:
- Exponential equation
Solve exponential equation (in real numbers): 98x-2=9
- Insert into GP
Between numbers 5 and 640 insert as many numbers to form geometric progression so sum of the numbers you entered will be 630. How many numbers you must insert?
- Water lilies
Water lilies are growing on the pond and their number is doubled every day. The whole layer is covered in 12 days. How many days will it cover 8 layers?
- Ball game
Richard, Denis and Denise together scored 932 goals. Denis scored 4 goals over Denise but Denis scored 24 goals less than Richard. Determine the number of goals for each player.
- Theorem prove
We want to prove the sentense: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?
Equation ? has one root x1 = 8. Determine the coefficient b and the second root x2.
Determine the discriminant of the equation: ?
Determine the quadratic equation absolute coefficient q, that the equation has a real double root and the root x calculate: ?
- Intercept with axis
F(x)=log(x+4)-2, what is the x intercept
- The city 3
The city has 22,000 residents. How long it is expected to have 25,000 residents if the average annual population growth is 1.4%?
if ?, what is b?
- Quadratic equation
Find the roots of the quadratic equation: 3x2-4x + (-4) = 0.
- Evaluation of expressions
If a2-3a+1=0, find (i)a2+1/a2 (ii) a3+1/a3
- Square root 2
If the square root of 3m2 +22 and -x = 0, and x=7, what is m?
- Men, women and children
On the trip went men, women and children in the ratio 2:3:5 by bus. Children pay 60 crowns and adults 150. How many women were on the bus when a bus was paid 4,200 crowns?
- Null points
Calculate the roots of the equation: ?
Solve two equations with two unknowns: 400x+120y=147.2 350x+200y=144